acceptCall method
Accept the incoming call
sends request with payload as:
`{
"request" : "accept",
}`
along with the payload it internally creates the answer with sendRecv
true and sends it.
Optionally you can provide your own answer if you want, in answer property.
Since it is asynchronous request result can only be extracted from event messages
Implementation
Future<void> acceptCall({RTCSessionDescription? answer}) async {
var payload = {"request": "accept"};
if (answer == null) {
answer = await createAnswer();
}
await this.send(data: payload, jsep: answer);
}